MB85RS4MLYPN-G-AWERE1

Memory IC Overview

The RAMXEED MB85RS4MLYPN-G-AWERE1 is a 4 Mbit (524,288 words x 8 bits) Ferroelectric Random Access Memory (FeRAM) utilizing SPI interface technology. It operates within a supply voltage range of 1.7 V to 1.95 V and supports clock frequencies up to 50 MHz. The device features high endurance of 10^13 read/write operations per byte and includes a unique 64-bit serial number alongside a special sector region for data stability during reflow processes. It is housed in an 8-pin plastic DFN package measuring 5 mm by 6 mm.

Memory IC Feature Summary

• Nonvolatile memory architecture providing data retention without backup power
• Integrated Unique ID and dedicated Special Sector Region resistant to reflow conditions
• High-speed Serial Peripheral Interface supporting Mode 0 and Mode 3 operation
• Robust write endurance exceeding standard Flash and EEPROM technologies

Memory IC Applications

• High-temperature environment applications requiring reliable nonvolatile storage
• Systems needing frequent data logging with minimal write latency
• Applications requiring hardware-level device identification via Unique ID
• Industrial equipment demanding high cycle life memory components

Memory IC Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and shipping format. Ensure the design accommodates the narrow 1.7 V to 1.95 V operating voltage range. Confirm that the system logic levels are compatible with the specified input/output voltage thresholds before integration.

Memory IC Selection Notes

Select this component when a low-voltage FeRAM solution with high endurance is required. The 50 MHz SPI interface suits high-throughput data acquisition systems. Consider the DFN package dimensions for PCB layout constraints. Verify compatibility with the specific SPI modes supported by the host microcontroller.

Memory IC Part Context

This part belongs to the MB85RS4MLY series of SPI-based FeRAM devices manufactured by RAMXEED Limited. The series maintains the legacy specifications associated with Fujitsu Semiconductor Memory Solutions Limited products. The MB85RS4MLYPN variant specifically denotes the 8-pin plastic DFN packaging option within this product family.

Memory IC Replacement Considerations

Consult official substitution lists for equivalent capacity and interface types. Verify pinout compatibility and voltage level alignment before replacing existing inventory. Cross-reference datasheet revisions to ensure feature parity.